WO2021004111A1 - Procédé et appareil de mise en sommeil, support d'informations, et équipement utilisateur - Google Patents

Procédé et appareil de mise en sommeil, support d'informations, et équipement utilisateur Download PDF

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Publication number
WO2021004111A1
WO2021004111A1 PCT/CN2020/085298 CN2020085298W WO2021004111A1 WO 2021004111 A1 WO2021004111 A1 WO 2021004111A1 CN 2020085298 W CN2020085298 W CN 2020085298W WO 2021004111 A1 WO2021004111 A1 WO 2021004111A1
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Prior art keywords
pdcch
sleep
entering
monitoring
enter
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PCT/CN2020/085298
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English (en)
Chinese (zh)
Inventor
周化雨
杨殷
张凯
王琤
沈兴亚
张萌
潘振岗
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展讯通信（上海）有限公司
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Publication of WO2021004111A1 publication Critical patent/WO2021004111A1/fr
Priority to US17/568,803 priority Critical patent/US12137418B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communication technology, in particular to a method and device for entering sleep, a storage medium, and user equipment.
  • the user equipment (User Equipment, UE) according to the discontinuous reception (Discontinuous Reception, DRX) or extended discontinuous reception (Extended Discontinuous Reception, eDRX) configuration, at the active time of DRX (Active
  • the physical downlink control channel Physical Downlink Control Channel, PDCCH
  • PDCCH Physical Downlink Control Channel
  • the activation time includes at least the running time of timers such as onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimer, drx-RetransmissionTimerShortTTI, drx-ULRetransmissionTimer, drx-ULRetransmissionTimerShortTTI or mac-ContentionResolutionTimer.
  • timers such as onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimer, drx-RetransmissionTimerShortTTI, drx-ULRetransmissionTimer, drx-ULRetransmissionTimerShortTTI or mac-ContentionResolutionTimer.
  • the base station may use Go-To-Sleep (GTS) signaling to instruct the user equipment not to monitor the PDCCH during the working duration timer.
  • GTS Go-To-Sleep
  • the sleep-entry signaling can be a Media Access Control (MAC) layer command.
  • the base station can use MAC packet data unit (PDU) or MAC control element (CE). Command the UE to stop the working duration timer.
  • PDU MAC packet data unit
  • CE MAC control element
  • time-frequency resources are few. If the UE is instructed to go to sleep through a MAC layer command, it needs to consume PDCCH and Physical Downlink Shared Channel (PDCCH) resources. Therefore, how to optimize the design of entering sleep signaling in a narrowband system is an urgent problem to be solved.
  • PDCCH Physical Downlink Shared Channel
  • the technical problem solved by the present invention is how to optimize the design of entering sleep signaling in a narrowband system.
  • the embodiments of the present invention provide a method for entering sleep.
  • the method for entering sleep includes: monitoring PDCCH and determining whether to enter the sleep state.
  • the entering sleep state refers to ignoring part of the PDCCH monitoring timing or modifying PDCCH configuration.
  • n and k are integers.
  • the monitoring the PDCCH and determining whether it is necessary to enter the sleep state includes: monitoring the sleep PDCCH; if the sleep PDCCH is detected, determining to enter the sleep state; or, if the sleep PDCCH is detected, and the sleep state If the sleep indication information in the downlink control information transmitted by the PDCCH indicates the sleep state, it is determined to enter the sleep state.
  • the monitoring the sleep PDCCH includes: monitoring the sleep PDCCH at the sleep PDCCH monitoring timing within the activation time;
  • the monitoring the sleeping PDCCH includes: monitoring the sleeping PDCCH in a common search space, and using a new RNTI to descramble the PDCCH, and if the descrambling is successful, determining that the PDCCH is a sleeping PDCCH.
  • the determining whether it is necessary to enter the sleep state includes: when the sleep PDCCH is detected, detecting a bit in a corresponding position in the sleep indication information to determine to enter the sleep state. .
  • the number of bits of the sleep indication information is configured through high-layer signaling, and the number of bits of the indication information is selected from 30 and 56.
  • the sleep indication information includes an identification of the user equipment that needs to enter the sleep state.
  • the identifier of the user equipment is an index or number of the user equipment.
  • higher layer signaling enables monitoring of the sleeping PDCCH.
  • the method for entering sleep further includes: if the sleep PDCCH is not detected, determining not to enter the sleep state.
  • the method for entering sleep further includes: monitoring the PDCCH; if the PDCCH is detected and the sleep indication information in the downlink control information transmitted by the PDCCH indicates the sleep state, then it is determined to enter the sleep state.
  • the monitoring the PDCCH includes: monitoring the PDCCH at the PDCCH monitoring timing within the activation time.
  • the monitoring the PDCCH includes: monitoring the PDCCH in the search space designated by the user, and using C-RNTI to descramble the CRC of the PDCCH, if the descrambling is successful, and the sleep indication information in the downlink control information transmitted by the PDCCH indicates to enter sleep , It is determined to enter sleep state.
  • the sleep indication information indicates that entering sleep means that the newly added DCI field includes the sleep indication information, or the original DCI field indicates an invalid state.
  • the downlink control information format of the sleeping PDCCH is a downlink control information format used to schedule PDSCH.
  • the downlink control information format used for scheduling PDSCH includes a downlink control information format used for scheduling non-broadcast PDSCH.
  • the size of the downlink control information is 56 bits.
  • the downlink control information format used for scheduling PDSCH includes a downlink control information format used for scheduling broadcast PDSCH.
  • the size of the downlink control information is 30 bits.
  • the method before monitoring the PDCCH, the method further includes: determining whether to modify the PDCCH configuration after entering the sleep state according to high-layer signaling from the base station.
  • higher layer signaling indicates whether to modify the PDCCH monitoring period, and the monitoring period is greater than the period of monitoring the PDCCH before the user equipment enters the sleep state.
  • the cycle indication information includes a multiple of the cycle for monitoring the PDCCH before the user equipment enters the sleep state.
  • higher layer signaling indicates whether to modify the PDCCH configuration after the user equipment enters the sleep state.
  • the downlink control information further includes first resource indication information to instruct the user equipment to monitor the number of PDCCH carriers, the carrier start position and/or the maximum number of repetitions after entering the sleep state.
  • higher layer signaling enables the sleep indication information indication.
  • the embodiment of the present invention also discloses a device for entering sleep.
  • the device for entering sleep includes: a PDCCH monitoring module for monitoring the PDCCH and determining whether to enter the sleep state.
  • the sleep state refers to Ignore some PDCCH monitoring occasions, or modify the PDCCH configuration.
  • the embodiment of the present invention also discloses a storage medium on which computer instructions are stored, and the steps of the method for entering sleep are executed when the computer instructions are run.
  • the embodiment of the present invention also discloses a user equipment, including a memory and a processor.
  • the memory stores computer instructions that can run on the processor.
  • the processor executes the access when the computer instructions are executed. Steps of sleep method.
  • the technical scheme of the present invention monitors the PDCCH and determines whether it is necessary to enter the sleep state.
  • the sleep state refers to ignoring part of the PDCCH monitoring opportunities or modifying the PDCCH configuration.
  • the technical scheme of the present invention determines whether to enter the sleep state by monitoring the PDCCH. On the one hand, it can reduce user power consumption in scenarios such as low packet arrival rate or network congestion, and on the other hand, it can avoid instructing the user equipment to enter sleep through MAC layer commands. Save time and frequency resources.
  • monitor the sleep PDCCH if the sleep PDCCH is detected, it is determined to enter the sleep state; or, if the sleep PDCCH is detected, and the sleep indication information in the downlink control information transmitted by the sleep PDCCH indicates the sleep state , It is determined to enter the sleep state. Or, monitor the PDCCH; if the PDCCH is detected and the sleep indication information in the downlink control information transmitted by the PDCCH indicates that the sleep state is entered, it is determined to enter the sleep state.
  • the technical scheme of the present invention determines whether to enter sleep by monitoring the PDCCH, and further realizes the flexibility of the user equipment entering the sleep state.
  • FIG. 1 is a flowchart of a method for entering sleep according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a specific implementation of step S101 shown in FIG. 1;
  • FIG. 3 is a partial flowchart of a method for entering sleep according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a specific application scenario of an embodiment of the present invention.
  • Fig. 5 is a schematic structural diagram of an apparatus for entering sleep according to an embodiment of the present invention.
  • the technical scheme of the present invention determines whether to enter the sleep state by monitoring the PDCCH. On the one hand, it can reduce user power consumption in scenarios such as low packet arrival rate or network congestion, and on the other hand, it can avoid instructing the user equipment to enter sleep through MAC layer commands. Save time and frequency resources.
  • the method for entering sleep described in this embodiment can be used on the user equipment side. That is, each step of the method of entering sleep can be executed by the user equipment.
  • the user equipment in the embodiment of the present invention may be in a narrowband system.
  • the UE can monitor the PDCCH and determine whether it needs to enter the sleep state.
  • the sleep state refers to ignoring part of the PDCCH monitoring occasions or modifying the PDCCH configuration.
  • modifying the PDCCH configuration may be modifying the monitoring period of the PDCCH, so as to reduce the number of times of monitoring the PDCCH within the activation time or the working duration timer. Specifically, reducing the number of times of monitoring the PDCCH may be to monitor the PDCCH by adopting a new monitoring period longer than the original monitoring period.
  • FIG. 1 is a flowchart of a method for entering sleep according to an embodiment of the present invention.
  • the method shown in FIG. 1 may include the following steps:
  • Step S101 monitor the sleeping PDCCH
  • Step S102 If the sleep PDCCH is detected, it is determined to enter the sleep state, or if the sleep PDCCH is detected and the sleep indication information in the downlink control information transmitted by the sleep PDCCH indicates the sleep state, then it is determined to enter the sleep state. status.
  • sequence number of each step in this embodiment does not represent a limitation on the execution order of each step.
  • the UE if the UE completes monitoring on the PDCCH ending in frame n and determines to enter the sleep state, the UE does not need to monitor the PDCCH on any frame from frame n+1 to frame n+k-1, that is, the UE ignores slave PDCCH monitoring opportunities from frame n+1 to frame n+k-1, where the ACK/NACK feedback indicated by the PDCCH starts from frame n+k.
  • ACK is generally called Acknowledgement
  • NACK is generally called Negative-Acknowledgment.
  • ACK/NACK feedback belongs to HARQ feedback. This can maintain business while saving power.
  • the UE if the UE completes monitoring on the PDCCH ending in frame n and determines to enter the sleep state, the UE does not need to monitor the PDCCH on any frame from frame n+1 to frame n+k-1, that is, the UE ignores slave PDCCH monitoring opportunities from frame n+1 to frame n+k-1, where the PDSCH scheduled by the PDCCH ends in frame n+k. This can maintain business while saving power.
  • the UE if the UE completes monitoring on the PDCCH ending in frame n and determines to enter the sleep state, the UE does not need to monitor the PDCCH on any frame from frame n+1 to frame n+k, that is, the UE ignores slave frame n PDCCH monitoring timing from +1 to frame n+k, where k is a high-level signaling indication.
  • the base station can tell the UE in advance that there is no PDCCH scheduling for a period of time.
  • the base station may configure N possible k values through MAC CE or RRC signaling, and dynamically indicate one of the N k values through PDCCH. This not only takes into account the flexibility, but also reduces the signaling overhead.
  • the UE if the UE completes monitoring on the PDCCH ending in frame n and determines to enter the sleep state, the UE does not need to monitor the PDCCH on any frame from frame n+1 to frame n+k-1, that is, the UE ignores slave The PDCCH monitoring time of frame n+1 to frame n+k-1, where k is an indication of higher layer signaling.
  • the base station can tell the UE in advance that there is no PDCCH scheduling for a period of time.
  • the UE can monitor the sleeping PDCCH and can determine whether the sleeping PDCCH is detected. If the sleep PDCCH is detected, it is determined to enter the sleep state. Alternatively, the UE may monitor the sleeping PDCCH and be able to determine whether the sleeping PDCCH is detected. If the sleep PDCCH is detected, and the sleep indication information in the downlink control information transmitted by the sleep PDCCH indicates to enter the sleep state. Sleep indication information refers to information that can be used to indicate whether the UE enters the sleep state. At this time, the UE uses the new RNTI to descramble the CRC of the PDCCH, and if the descrambling is successful, it is determined that the sleeping PDCCH is detected. And the UE entering the sleep state includes the UE ignoring some PDCCH monitoring occasions.
  • the UE may monitor the sleep PDCCH at the sleep PDCCH monitoring timing within the active time, so as not to increase the time the UE monitors the PDCCH and does not increase the power consumption of the UE.
  • step S101 may include the following steps: determining that the first PDCCH to be monitored at the start of the activation time or the working duration is the sleeping PDCCH; or, within the activation time or the working duration The sleeping PDCCH is determined in a subset of the PDCCH monitoring occasions.
  • the time for the UE to monitor the sleeping PDCCH is limited, which may be the first PDCCH to be monitored in the working duration timer. Since the PDCCH monitoring timing in the working duration timer is determined, the monitoring timing of the sleeping PDCCH may also be a subset of the PDCCH monitoring timing in the working duration timer, thereby further reducing the power consumption of the UE.
  • step S101 if the UE does not detect the sleep PDCCH in step S101, it is determined not to enter the sleep state.
  • step S101 the sleep PDCCH is monitored, and in the specific implementation of step S102, it is determined whether to enter the sleep state.
  • step S101 before step S101, higher layer signaling enables monitoring of the sleeping PDCCH. If the UE receives high-level signaling not to enable monitoring of the sleep PDCCH, the UE does not perform step S101, so that the base station has the flexibility to instruct the UE that does not need to save power to not enable monitoring of the sleep PDCCH.
  • the UE if the working duration timer in the DRX cycle is less than the preset threshold, the UE does not monitor the sleep PDCCH, that is, does not perform step S101 shown in FIG. 1. Since in a scenario where the duration of the working duration timer is less than the preset threshold, the UE has fewer opportunities to monitor the PDCCH during the working duration, so the sleep PDCCH may not be monitored to ensure the data transmission performance of the UE.
  • the downlink control information further includes the duration of entering the sleep state, and the duration is the number of DRX cycles.
  • step S101 shown in FIG. 1 may include the following steps: monitor the sleeping PDCCH in the common search space, and use the new RNTI to descramble the CRC of the PDCCH, if the descrambling is successful, then It is determined that the sleeping PDCCH is detected.
  • the UE can monitor the sleeping PDCCH in the common search space and determine whether it is a sleeping PDCCH.
  • the specific monitoring method may be: using a new radio network temporary identity (RNTI) to descramble the PDCCH, and if the descrambling is successful, it can be determined that the PDCCH is a sleeping PDCCH.
  • RNTI radio network temporary identity
  • the new RNTI refers to an RNTI different from the original RNTI to distinguish the sleeping PDCCH from the original PDCCH.
  • the size of the DCI may be 56 bits.
  • the descrambling of the PDCCH may refer to performing cyclic redundancy check (Cyclic Redundancy Check, CRC) descrambling on the PDCCH.
  • CRC Cyclic Redundancy Check
  • the sleep indication information includes a bit in a position corresponding to the user equipment on the bitmap.
  • the UE may detect a bit at a corresponding position in the sleep indication information to determine to enter the sleep state.
  • the sleep indication information may be carried in the DCI in the form of a bitmap, and the UE may determine whether the UE has entered sleep by checking the value of the corresponding bit position in the bitmap, for example, When the bit value is 0, the UE does not enter sleep, and when the bit value is 1, the UE enters sleep.
  • the number of bits of the sleep indication information is configured by high-level signaling, such as radio resource control (Radio Resource Control, RRC) signaling, and the number of bits of the indication information is selected from 30 and 56 to be the same as DCI
  • RRC Radio Resource Control
  • the sleep indication information may be carried in the DCI in the form of an identification list of the UE, and the identification list includes the identification of at least one UE that needs to enter sleep.
  • the UE determines whether to enter sleep by checking whether its own identity exists in the identity list.
  • the identifier of the user equipment is an index or a number (number) of the user equipment.
  • step S101 shown in FIG. 1 can be replaced with a step: monitoring PDCCH.
  • the PDCCH refers to the PDCCH that needs to be monitored during the activation time.
  • the UE may monitor the PDCCH at the PDCCH monitoring occasion within the active time, so as not to increase the time the UE monitors the PDCCH and does not increase the power consumption of the UE.
  • Step S101 shown in FIG. 1 may include the following steps:
  • Step S201 Monitor the PDCCH in the designated search space (UE-specific search space), and use the new C-RNTI to descramble the CRC of the PDCCH, and if the descrambling succeeds, it is determined to enter the sleep state;
  • Step S202 Monitor the PDCCH in the designated search space, and use the C-RNTI to descramble the CRC of the PDCCH. If the descrambling is successful and the sleep indication information in the downlink control information transmitted by the PDCCH indicates sleep, it is determined that the detected PDCCH is Sleep PDCCH. Generally speaking, the PDCCH at this time is the scheduling PDCCH.
  • the UE may selectively execute step S201 or step S202 according to actual application requirements.
  • the UE can monitor the PDCCH in the designated search space and determine whether it is a sleeping PDCCH.
  • the specific monitoring manner may be: the UE uses a new Cell Radio Network Temporary Identifier (C-RNTI) to descramble the CRC of the PDCCH, and if the descrambling succeeds, it can be determined that the sleeping PDCCH is detected.
  • C-RNTI refers to a C-RNTI that is different from the original C-RNTI to distinguish the sleeping PDCCH from the original PDCCH.
  • the specific monitoring method can also be: use C-RNTI (that is, the original C-RNTI) to descramble the CRC of the PDCCH, if the descrambling is successful, obtain the DCI transmitted by the PDCCH, if the sleep indication information in the DCI transmitted by the PDCCH Indicate to enter sleep, confirm to enter sleep state.
  • C-RNTI that is, the original C-RNTI
  • the descrambling of the CRC of the PDCCH may refer to performing a cyclic redundancy check (Cyclic Redundancy Check, CRC) descrambling on the PDCCH.
  • CRC Cyclic Redundancy Check
  • the sleep indication information indicates that the sleep indication information means that the newly added DCI field includes the sleep indication information, or the original DCI field indicates an invalid state.
  • one bit can be added as a new DCI field to carry sleep indication information.
  • the value of the new DCI field is 1, and the UE enters sleep.
  • the value of the newly added DCI field is 0, and the UE does not enter sleep.
  • a certain DCI field in the original DCI format has 3 bits, which can indicate 8 states, but two of them are invalid states, for example, 110 and 111. Then, when the original DCI field indicates an invalid state, that is, when the values of the original DCI field are 110 and 111, the UE can determine that the PDCCH is a sleep PDCCH.
  • the downlink control information format of the sleeping PDCCH is a downlink control information format used to schedule PDSCH.
  • the downlink control information format of the sleeping PDCCH is a downlink control information format used to schedule PDSCH.
  • the DCI format of the sleeping PDCCH may be the original DCI format, for example, the downlink control information format used to schedule PDSCH. Furthermore, the UE can use the original DCI format to parse the DCI of the sleep PDCCH to avoid changing the DCI size and increasing the number of blind checks.
  • the downlink control information format used for scheduling PDSCH includes the downlink control information format used for scheduling non-broadcast PDSCH. Specifically, the size of the downlink control information is 56 bits.
  • the UE may use the downlink control information format for scheduling non-broadcast PDSCH to parse the DCI of the sleeping PDCCH, so that the UE does not need to monitor the downlink control information format for scheduling non-broadcast PDSCH in the connected state.
  • the downlink control information format used for scheduling PDSCH includes a downlink control information format used for scheduling broadcast PDSCH. Specifically, the size of the downlink control information is 30 bits.
  • the downlink control information further includes monitoring indication information for indicating whether the user equipment monitors the PDCCH after entering the sleep state.
  • the method may further include the following steps: After the sleep state, it is determined whether to monitor the PDCCH according to the monitoring indication information.
  • the monitoring indication information in the DCI may indicate whether the UE monitors the PDCCH after entering sleep, so that the UE can also monitor a small amount of PDCCH after entering sleep, thereby improving the performance of the UE.
  • the downlink control information also includes period indication information to instruct the user equipment to monitor the PDCCH monitoring period after entering the sleep state; referring to FIG. 3, the method further includes:
  • Step S301 After entering the sleep state, determine the period for monitoring the PDCCH according to the monitoring indication information
  • Step S302 Monitoring the PDCCH according to the monitoring period indicated by the period indication information, the monitoring period being greater than the period of monitoring the PDCCH before the user equipment enters the sleep state.
  • the period indication information may directly indicate the specific value of the monitoring period, and the period indication information may also include a multiple of the period during which the user equipment monitors the PDCCH before the user equipment enters the sleep state. Wherein, the multiple value is a positive integer greater than 1.
  • the UE can monitor the PDCCH according to the monitoring period indicated by the period indication information to obtain scheduling information, which helps the base station configure the number or density of the UE to monitor the PDCCH.
  • the downlink control information also includes first resource indication information to indicate the number of carriers, the carrier start position and/or the maximum number of repetitions for the user equipment to monitor the PDCCH after entering the sleep state.
  • the base station can easily configure the frequency domain resources and the total number of time domain resources for the UE to monitor the PDCCH.
  • the method shown in FIG. 1 further includes: after entering the sleep state, determining whether to monitor and wake up the PDCCH according to the sleep indication information.
  • the sleep indication information can also indicate whether the UE monitors the wake-up PDCCH after entering sleep, where the wake-up PDCCH can indicate whether the UE enters the wake-up state, and the entry into the wake-up state refers to starting the working duration timer or starting DRX. Activate the timer.
  • the sleeping PDCCH and the awakening PDCCH can flexibly cooperate with each other, and the flexibility of the UE to monitor the PDCCH can be improved.
  • the sleep indication information further includes second resource indication information to instruct the user equipment to monitor the number of carriers for waking up the PDCCH after entering the sleep state, the carrier start position and/or the maximum number of repetitions.
  • the base station can easily configure the frequency domain resources and the total number of time domain resources for monitoring and waking up the PDCCH.
  • the UE determines whether to modify the PDCCH configuration after entering the sleep state according to high-layer signaling from the base station.
  • the UE can enter the sleep state in a variety of ways, such as ignoring part of the PDCCH monitoring opportunity, or modifying the PDCCH configuration, the specific way the UE enters the sleep state can be instructed through high-level signaling, that is, the UE is instructed to ignore Part of the PDCCH monitoring time, or modify the PDCCH configuration.
  • the higher layer signaling indicates whether to modify the PDCCH monitoring period, the monitoring period being greater than the period of monitoring the PDCCH before the user equipment enters the sleep state.
  • the base station configures a semi-static DRX cycle for the UE in the connected state, where the working duration timer is turned on by default at the beginning of the DRX cycle, and the length of the working duration timer It is T1 shown in a in Fig. 4, for example, 10 milliseconds (ms).
  • the length of the DRX cycle and the default on-duty timer can be adaptively configured, which is not limited in the embodiment of the present invention.
  • the UE is in a narrowband system, and the packet arrival rate in this scenario is low.
  • the UE can monitor the PDCCH during the working duration timer. For example, the UE detects the PDCCH at the 80th ms in the working duration timer, and obtains sleep indication information to indicate that it enters the sleep state.
  • the UE's activation time (high-level line) is as shown in FIG. 4.
  • the working duration timer in the current DRX cycle (shown by the dotted line in Figure 4) is 160ms, as shown in T1; the UE enters the sleep state after listening to the PDCCH and obtaining the sleep indication information. According to the signaling, the UE The 80ms PDCCH monitoring opportunity is ignored, so the UE only monitors the PDCCH within the first 80ms when the working duration timer is started, as shown in T2.
  • an embodiment of the present invention also discloses a device 50 for entering sleep, and the device 50 for entering sleep includes a PDCCH monitoring module 501.
  • the PDCCH monitoring module 501 is used to monitor the PDCCH and determine whether it is necessary to enter the sleep state, the entering the sleep state refers to ignoring part of the PDCCH monitoring timing, or modify the PDCCH configuration.
  • the embodiment of the present invention monitors the PDCCH to determine whether to enter the sleep state. On the one hand, it can reduce user power consumption in scenarios such as low packet arrival rate or network congestion, and on the other hand, it can avoid instructing the user equipment to enter sleep through MAC layer commands. Save time and frequency resources.
  • the embodiment of the present invention also discloses a storage medium on which computer instructions are stored, and the computer instructions can execute the steps of the method shown in FIG. 1, FIG. 2 or FIG.
  • the storage medium may include ROM, RAM, magnetic disk or optical disk, etc.
  • the storage medium may also include non-volatile memory (non-volatile) or non-transitory memory, etc.
  • the embodiment of the present invention also discloses a user equipment, the user equipment may include a memory and a processor, and the memory stores computer instructions that can run on the processor.
  • the processor may execute the steps of the method shown in FIG. 1, FIG. 2 or FIG. 3 when running the computer instruction.
  • the user equipment includes but is not limited to terminal equipment such as mobile phones, computers, and tablets.
  • the user equipment in the embodiments of the present invention can be any implementable access terminal, user unit, user station, mobile station, mobile station (mobile station, built MS), remote station, remote terminal, mobile device, user terminal, terminal Equipment (terminal equipment), wireless communication equipment, user agent or user device.
  • the user equipment can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (Public Land Mobile Network, referred to as The terminal equipment in the PLMN) is not limited in the embodiment of the present application.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the base station (base station, BS for short) in the embodiments of the present application may also be referred to as base station equipment, and is a device deployed on a radio access network (RAN) to provide wireless communication functions.
  • equipment that provides base station functions in 2G networks includes base transceiver station (English: base transceiver station, referred to as BTS)
  • equipment that provides base station functions in 3G networks includes NodeB
  • equipment that provides base station functions in 4G networks Including evolved NodeB (eNB), in wireless local area networks (WLAN), the equipment that provides base station function is access point (AP), 5G new radio (New Radio) , Referred to as NR) in the gNB that provides base station functions, and the evolving Node B (ng-eNB), where the gNB and the terminal use NR technology for communication, and the ng-eNB and the terminal use E-UTRA (Evolved Universal Terrestrial Radio Access) technology for communication, both gNB and ng-eNB can be connected to the 5G core network.
  • the base station in the embodiment of the present application also includes equipment that provides base station functions in a new communication system in the future.
  • equipment that provides base station functions in a new communication system in the future.
  • a and/or B can mean: A alone exists, and both A and B exist. , There are three cases of B alone.
  • the character "/" in this text indicates that the associated objects before and after are in an "or" relationship.
  • the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors or digital signal processors (DSP for short). , Application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (read-only memory, ROM for short), programmable read-only memory (programmable ROM, PROM for short), erasable PROM (EPROM for short) , Electrically Erasable Programmable Read-Only Memory (EPROM, EEPROM for short) or flash memory.
  • the volatile memory may be a random access memory (random access memory, RAM for short), which is used as an external cache.
  • random access memory random access memory
  • RAM random access memory
  • SRAM static RAM
  • DRAM dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchronously connect dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the above-mentioned embodiments in this application may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions or computer programs.
  • the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed method, device, and system can be implemented in other ways.
  • the device embodiments described above are merely illustrative; for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation; for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may be separately physically included, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium.
  • the above-mentioned software function unit is stored in a storage medium, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute part of the steps of the method described in each embodiment of the present invention.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc., which can store program codes Medium.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un procédé et un appareil de mise en sommeil, sur un support d'informations et sur un équipement utilisateur. Le procédé de mise en sommeil consiste : à surveiller un PDCCH, et à déterminer s'il est nécessaire de passer à l'état de sommeil, ledit passage à l'état de sommeil consistant à ignorer certaines occasions de surveillance de PDCCH, ou à modifier la configuration de PDCCH. Au moyen de la solution technique de la présente invention, la signalisation de mise en sommeil dans un système à bande étroite peut être conçue de manière optimale.
PCT/CN2020/085298 2019-07-05 2020-04-17 Procédé et appareil de mise en sommeil, support d'informations, et équipement utilisateur WO2021004111A1 (fr)

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CN114025417A (zh) * 2019-07-05 2022-02-08 展讯通信（上海）有限公司 进入睡眠的方法及装置、存储介质、用户设备
WO2022000429A1 (fr) * 2020-07-02 2022-01-06 Oppo广东移动通信有限公司 Procédé et appareil de détermination d'une occasion de surveillance de pdcch, dispositif et support de stockage
CN114501597A (zh) * 2020-10-23 2022-05-13 展讯通信（上海）有限公司 数据处理方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017023370A1 (fr) * 2015-08-04 2017-02-09 Intel IP Corporation Accès au spectre dynamique avec une largeur de bande flexible pour des systèmes d'accès partagé sous licence
CN109219116A (zh) * 2018-08-09 2019-01-15 华为技术有限公司 一种终端设备的休眠方法及装置
CN109286968A (zh) * 2017-07-20 2019-01-29 维沃移动通信有限公司 一种盲检测参数获取方法、相关设备及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11646817B2 (en) * 2017-10-17 2023-05-09 Mediatek Singapore Pte. Ltd. PDCCH monitoring for low power consumption for narrow band internet of things
CN109963326B (zh) * 2017-12-25 2021-03-02 维沃移动通信有限公司 控制信道监听方法、监听指示方法、终端及网络设备
KR102537680B1 (ko) * 2019-02-13 2023-05-30 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 절전 신호 모드의 사용 방법, 장치 및 단말
CN114025417A (zh) * 2019-07-05 2022-02-08 展讯通信（上海）有限公司 进入睡眠的方法及装置、存储介质、用户设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017023370A1 (fr) * 2015-08-04 2017-02-09 Intel IP Corporation Accès au spectre dynamique avec une largeur de bande flexible pour des systèmes d'accès partagé sous licence
CN109286968A (zh) * 2017-07-20 2019-01-29 维沃移动通信有限公司 一种盲检测参数获取方法、相关设备及系统
CN109219116A (zh) * 2018-08-09 2019-01-15 华为技术有限公司 一种终端设备的休眠方法及装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
APPLE INC.: "Design of PDCCH-based Power Saving Signal and Channel", 3GPP TSG RAN WG1 #97 R1-1907345, 17 May 2019 (2019-05-17), XP051709367, DOI: 20200614131640X *
CATT: "Summary of PDCCH-based Power Saving Signal/Channel", 3GPP TSG RAN WG1 #97 R1-1907809, 17 May 2019 (2019-05-17), XP051740083, DOI: 20200614131745X *
MEDIATEK INC.: "Design of PDCCH-based power saving signal/channel for NR", 3GPP TSG RAN WG1 #96-BIS R1-1904487, 12 April 2019 (2019-04-12), XP051707229, DOI: 20200614132142X *

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US20220132426A1 (en) 2022-04-28
CN111294901A (zh) 2020-06-16

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